More than six decades ago Mahatma Gandhi led a peaceful revolution against British rule of his native India. He pioneered the principles of nonviolence that have influenced social movements around the world since — from the civil rights movement in the U.S. to the recent Arab Spring in the middle east.

Arun Gandhi went to live with his grandfather when he was 12 years old, and the elder Gandhi was assassinated less than two years later. Arun Gandhi is continuing his grandfather’s work with the M.K. Institute for Nonviolence, which promotes peace, and the Gandhi Worldwide Education Institute, which focuses on eradicating child poverty.